First Bristol Optometry

What do you see?

The ability to do magic eye pictures is an indication that your eyes are working together correctly, and you have good stereopsis (aka 3D vision or depth perception).

Technique - With the parallel viewing method (a.k.a. the divergence or Magic Eye method), the lines of sight of your eyes move outward toward parallel and meet in the distance at a point well behind and beyond the image. That's why it's called parallel viewing.